CALIPER ASSEMBLY FOR SERVICE AND PARKING DISC BRAKE

• US 20150021125A1
• Filed: 02/15/2013
• Published: 01/22/2015
• Est. Priority Date: 02/16/2012
• Status: Active Grant

• Current Assignee: Brembo SPA (Nuova Fourb Srl)
• Original Assignee: Freni Brembo S.P.A.
• Inventors: Crippa, Cristian, Nessi, Lorenzo, Bonetti, Adriano
• Granted Patent: US 9,422,991 B2
• Time in Patent Office: Days
• US Class Current: 188/72.5
• CPC Class Codes: F16D 2055/0008 Brake supports
• CPC Class Codes: F16D 2055/0016 Brake calipers
• CPC Class Codes: F16D 2055/0091 Plural actuators arranged side by side on the same side of the rotor
• CPC Class Codes: F16D 2121/04 acting on a piston-type actuator, e.g. for liquid pressure
• CPC Class Codes: F16D 2123/00 Multiple operation forces
• CPC Class Codes: F16D 55/226 in which the common actuating member is moved axially , e.g. floating caliper disc brakes
• CPC Class Codes: F16D 55/228 with a separate actuating member for each side

Abstract

A caliper assembly for a service and parking disc brake (1) comprising a service caliper body (2) placed astride a disc for a disc brake having a first and second elongated element on the vehicle side (4), a first service pad (8) to abut it against a first braking surface of the disc and exercise a service braking action on the vehicle, said first elongated element (4) comprising a first abutment and guide pin (16) of the first pad (8) to guide it and receive the braking action of the vehicle, a parking caliper (17) comprising separate thrust means (20) of the parking caliper and for abutting at least a third parking pad (21) against the first braking surface of the disc, said parking caliper (17) has a connection (18) for supporting and connecting at least partially said parking caliper (17) to said service caliper body (2), said connection (18) of the parking caliper (17) to the service caliper body (2) comprises a first blocking screw (19) positioned coaxially to said first support and guide pin (16) of the first service pad (8).

Claims

1. Assembly of service and parking caliper for disc brake comprising:

a service caliper body arranged astride of a disc for disc brake having a first vehicle side elongated element suitable for facing a first braking surface of the brake disc, said first elongated element comprising at least a first cylinder housing a first thrust piston suitable for exerting a thrust action of a faced first service pad for abutting it against a first braking surface of the disc and exerting a service braking action of the vehicle;

said first elongated element comprising at least a first abutment and guide pivot or pin of the first pad for guiding it and receiving the braking action of the vehicle;

said service caliper body further comprising a second wheel side elongated element suitable for facing a second braking surface of the brake disc, said second elongated element comprising at least a second cylinder housing a second thrust piston suitable for exerting a thrust action on a second faced service pad for abutting it against a second braking surface of the disc and exerting a service braking action of the vehicle;

said service caliper body further comprises at least a first bridge suitable for connecting said first vehicle side elongated element to said second wheel side elongated element;

said assembly further comprises;

a parking caliper comprising separated thrust means of the parking caliper separated from said first and second cylinder and suitable for abutting at least a third parking pad against the first braking surface of the disc;

said parking caliper has a connection for connecting and supporting at least partially said parking caliper to said service caliper body;

wherein

said connection of the parking caliper to the service caliper body comprises a first locking screw arranged coaxially to said first pin for supporting and guiding the first service pad.

2. Assembly according to claim 1, wherein said service caliper body comprises at least two bridges arranged adjacent to one another leaving between them a window for accessing the disc, and/or wherein

said parking caliper is arranged between said adjacent bridges.

3. Assembly according to claim 1, wherein said parking caliper is a floating parking caliper comprising a floating body, in a single piece or in two pieces firmly connected to one another, which moves sliding on rails fastened to the service caliper body serving as a bracket for said floating body.

4. Assembly according to claim 3, wherein said first locking screw serves as a first rail of said floating body, and/or wherein

on said first locking screw a guiding bush suitable for receiving the floating* body is put on, and/or wherein

said guiding bush receives an attachment portion of the floating body, which is free to slide.

5. Assembly according to claim 1, wherein

said parking caliper comprises a floating caliper body slidably supported on said service caliper body serving as a bracket for said floating body, wherein said floating body slides on a second rail arranged on the opposite side of the floating body with respect to the first rail comprising said locking screw, and/or wherein

said second rail is connected to the wheel side elongated element of the service caliper body.

6. Assembly according to claim 1, wherein

said first abutment and guide pivot or pin of the first pad has an externally threaded stem received in a threaded seat provided in the first vehicle side elongated element, and/or wherein

said abutment and guide pin of the first pad has a hollow stem internally threaded for housing a threaded end of the first locking screw.

7. Assembly according to claim 1, wherein

said first locking screw has a stem projecting cantilevered from said first vehicle side elongated element to form a sliding rail for the floating body of the parking caliper, and/or wherein

between the floating body and the first locking screw a guiding bush, protected by anti-dust caps, is interposed.